Currently, it is possible to use either a geometric small cancellation labelling (as in Gromov [1]}) or a graphical small cancellation labelling, and these have been shown to have a very different character, for instance the groups that come from these labellings cannot be quasi-isometric (this is due to Gruber–Sisto [2]}). The method itself is very flexible and compatible with other small cancellation constructions possible in the literature - see for instance the remarks of Arzhantseva–Delzant [3]}.
